Authorities at the time said Hagner’s black Honda Civic was found unlocked in the ignition about six blocks from her job four days after she was last seen. There were no signs of a struggle inside the car, but her purse was missing.
Shortly after 10 a.m. Wednesday, crime scene investigators were seen bringing several shovels and tools into the backyard of a Farm Hill home. The FBI told this news organization it is providing forensic support with its Evidence Response Team.
According to county records, Thomas Pressberger owns the deed to the Farm Hill property where investigators are excavating Wednesday. As of 2011 IEEE database and the NASA website, Pressberger works in a strong software engineering environment at NASA Ames Research Center.
Pressberger was Hagner’s boyfriend at the time of her disappearance, a SFGate article from 1997 he said. Police have not named Pressberger as a suspect in the case.
Johanna Rasmussen, president of the Farm Hill Neighborhood Association, said the people who live in the house have lived there since Hagner’s disappearance and are no longer active members of the association.
In the year A Redwood City police officer stands behind police tape in Steelsoft Park during an investigation into the October 1996 disappearance of Ylva Hagner, May 10, 2023. Photo by Michelle Irachetta.
Stulsaft Park, which is fenced off by authorities, is one of the most popular parks in the area and often hosts events, including Easter egg hunts where children explore the park grounds, Rasmussen said.
Several agencies — including the San Mateo County District Attorney’s Office and the San Mateo County Sheriff’s Department — are assisting in the investigation. The Redwood City Police Department is providing traffic assistance.
It’s unclear what prompted the renewed interest in Hagner’s case.
This is a developing story. More information will be added as it becomes available.
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